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Finding the Fourth Proportional to 94,247.65, 130,041.12 and 56,019.90

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Solution

The fourth proportional to 94,247.65, 130,041.12 and 56,019.90 is: 77,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,247.65 : 130,041.12 = 56,019.90 : x
  2. Step 2: Convert to fraction form
    94,247.65/130,041.12 = 56,019.90/x
  3. Step 3: Cross multiply
    94,247.65x = 130,041.12 × 56,019.90
  4. Step 4: Simplify right side
    94,247.65x = 7,284,891,078.46
  5. Step 5: Solve for x
    x = 7,284,891,078.46/94,247.65
  6. Step 6: Final answer
    x = 77,295.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.